get_settings();
$db_manager = QDR_TSS_DB_Manager::instance();
// Get total storage usage
$total_size = $db_manager->get_total_storage();
$max_size = $settings['max_upload_size'];
$usage_percent = ($max_size > 0) ? min(100, ($total_size / $max_size) * 100) : 0;
?>